Abstract: Due to its larger specific surface area, abundant pore structure and low cost, montmorillonite has been used in many fields, especially, industrial wastewater treatment. Therefore, based on the special structure of montmorillonite, the inorganic modification is proposed to improve its adsorption capacity by promoting its pore structure and surface area, compared with the traditional adsorbent. However, in order to further raise the adsorption capacity, it is an innovative idea that the organic modification was adopted to reduce its surface hydrophobicity and increase the addinity between the organic molecules. The structure, properties and the modification methods of montmorillonite are explained in this paper. In addition, inorganic-organic pillared of montmorillonite in industrial wastewater treatment are mainly summarized and the application prospects of inorganic-organic pillared of montmorillonite are discussed.

Key words: montmorillonite;organic-inorganic modification;adsorption;industrial wastewater